Devin,Deven or Devon???

My oldest son's name is Devon!! Devon Henry is his name. My middle one is Logan(GREAT CHOICES!!) When Devon was in kindergarten there was a little girl in his cl(they couldn't have seperated them?) named Devin...... It is technically a uni name and every girl I've ever seen (only 2 or 3) with the name spelled it with an i. When he was a baby(he's 7 now) we got alot of mispronunciations like (de-vaughn) it drove me crazy! The name has become more common, and his name hasn't been mispronounced in years. I would avoid the i, just in case a little girl winds up in his cl. The name has grown in popularity for boys, and dropped off the charts for girls. Anyway, Logan can also be a uni name( they're booys names as far as I'm concerned) so I'd avoid that as a middle name. My boys all have "uni" names, so there middle names are strong male names. ex. Henry, James and Richard. I really like the sound of Devon Issac. It's a very strong name. I wish I'd of thought of it. Oh, and Devon loves his name! Congratulations!!!!!!